Mechanism for pushing the linotypes out of molds of linotype-machines.



No. 7|0,652. Patented Oct. 7, 1902 1 c. A. ALBRECHT. I MECHANISM FOR PUSHING THE LINUTYPES OUT OF MOLDS 0F LINOTYPE MACHINES.

(Application filed July 24, 1901.)

(No Model.)

I m v.1; m: Norms mans co. wow-mu. wunwm'q UNTTED STATES PATENT OFFICE.

CHRISTIAN AUGUSTUS ALBRECHT, OF BERLIN, GERMANY.

MECHANISM FOR PUSHING THE LINOTYPES OUT OF MOLDS OF LINOTYPE-MACHINES.

SPECIFICATION forming part of Letters Patent No. 710,652, dated October '7, 1902. Application filed July 24, 1901- Serial No. 69,507. (No model.)

To aZ whom, it may concern/.-

Be it known that I, CHRISTIAN AUGUSTUS ALBRECET, a citizen of the United States of America, and a resident of 8 Paulstrasse, Berlin, in the Kingdom of Prussia, German Empire, have invented certain new and useful Improvements in Mechanism for Pushing the Linotypes Out of the Molds of Linotype- Machines, of which the following is an exact specification.

My invention relates to a new andimproved mechanism for pushing the linotypes out of the mold of linotype-machines, and has especially for its purpose to provide a mechanism by means of which the linotype is at first pushed forward by means of an ejector, so that the edge of the same projects in front of the mold-block, whereafter this edge can be trimmed and afterward the whole linotype pushed out by the ejector. In the constructions hitherto used for this purpose the trimming of the edges is effected by means of knives traveling down the linotype from top to bottom during a time that the latter is protruded from the mold-block in the moldwheel. In my new construction the pushing out of the linotype, so as to project in front of the mold-block, the trimming of the edges, and the perfectly pushing out of the linotype are effected in three different operations following one to the other.

It is known that in linotype-machines a great number of successive operations have to be fulfilled during each revolution of the driving-shaft, so that, for instance, in the Mergenthaler linotype-machine, one revolution is divided into eighty divisions corresponding to the about eighty operations to be fulfilled in one revolution. Among these operations rank naturally the casting and pushing out of the linotype, for which operations naturally only a very small part of the revolution can be used, so that these operations have to be carried out in a very short time. In the constructions hitherto used the pushing out and trimming could be very well effected during this time, as these two operations were carried out simultaneously, as stated above; but in case three operations have to be carried out one after the other it has proved very hard to do this in the short time in which they have to be carried out.

According to my new invention the carrying out of the three operations one after the other is made possible by using not only a cam or a curved disk fixed to the driving-shaft for pushing out the linotype, but using at the same time an elastic material-as, for instance, a spring, an air-buffer, or the like. The curved disk in this case pushes the linotype out of the mold-block at first, so as to project far enough for the edges being trimmed, in which position the linotype is kept by the form of the curve, so that no movement of the linotype takes place during the trimming, whereafter the linotype is suddenly perfectly pushed out of the mold by means of the elastic material.

My invention is represented on the accompanying drawings, in which Figure 1 shows the mechanism in the position in which the linotype is still perfectly situated within the mold. Fig. 2 shows the same in the position in which the linotype is partly pushed out, so that the edge of the same can be trimmed.

The ejector a is so situated that it can be moved in the well-known manner in and out the slot 0 of the mold Z). The ejector ais connected by means of a connecting-rod d with the lever e, pivoted at f. Upon the driving-axle g of the linotype-machine a curved disk It is fixed, by means of which disk the rollers 70 and Z, fixed to the lever f, are alternately moved. In the position shown in Fig. 2 the upper roller 75 has entered into the groove on of the disk 71. That part of the groove situated between 1 and 2 is situated so as to form an angle,with the tangent drawn to the periphery of the disk h, so as to touch the same at 1. By this means the roller 7t and at the same time the lever e, the connecting-rod d, and the ejector a will be moved from the position shown in Fig. 1 to that shown in Fig. 2, in which position the linotype has been pushed out so as to project over the mold -block Z). From 2 to 3 the groove m is centric, so that the roller 7.: and herewith the lever c and the ejector a do not move at all during the time the roller 70 passes the way from 2 to 8, whereby during this time the trimming-knives can be moved along the projecting edges of the linotype 2'. After the edges of the linotype i are trimmed the linotype must be quickly pushed perfectly out of the mold, for which purpose a strong spring n or the like is provided, by means of which spring the roller is is moved from the point 3 of the groove m quickly toward the axle of the disk h. In order to avoid the linotype being pushed out too quickly, so that the same might be damaged,the curve m is formed at 0, so that the roller It must move along the surface 0, which does not directly go toward the center, so that by means of the curve 0 the movement of the ejector a is checked to a certain extent. The outer face of the curve m opposite to the curve o-that is to say, the face pis also curved, so as to run parallel with the curve 0, so that in case an undesired checking of the ejector or the like takes place this checking is overcome by the curve 1) pushing against the roller k.

In order to bring the ejector a back to its former position, asector-formed projection q is provided at the disk h, upon which sectorformed projection a roller Z, fixed to the lever 6, runs. The sector-formed projection q is situated so that the roller Z runs always over this projection except during the time the roller 70 passes the groove 172. On the way the roller Z passes during this time a projection q is provided, so that the roller Z can be drawn into the path of the projection g. If the roller is has passed the groove m, the sectorformed projection g has reached again the roller Z and pushes this roller back, so that the same runs again over the sector-formed projection q, whereby the ejector a has been brought back to its normal position.

Having thus fully described the nature of my said invention, what I desire to secure by Letters Patent of the United States is In a mechanism for pushing the linotypes out of the mold of linotype-machines, the combination of a lever 8 provided with two rollers Zr and Z, a disk It provided with agroove m, said groove being adapted to receive the roller 75, and a sector-formed projection (1 adapted to push back the roller Z with a spring at fixed to the lever e and adapted to force the roller is to follow the curve of the groove m, as and for the purpose set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CHRISTIAN AUGUSTUS ALBRECHT.

Witnesses:

WOLDEMAR HAUPT, HENRY HASPER. 

